I put a trap in my ceiling space to conquer a rat invasion. The first strike was within hours, but the next one I never heard and a few days later when I got up there to check it, there was a scattering of chewed bone pieces around the trap, none larger than a centimetre, and not a trace of anything else, not even fur.
So where is their ethics cut-off, and how to we measure ours against theirs?
Still, I would rather NOT be part of a project which uses coercion (torture?) such as depriving a bunch of rats of water until they do what I want.